The man has 5% blue pens.To calculate the percentage of blue pens, you divide the number of blue pens by the total number of pens and multiply the result by 100.
A man has 180 pens and 9 of them are blue, how much in percent has he blue pen?
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Question context
This question is part of 📏 Arithmetic Aptitude within the broader 🧠 Aptitude Mastery subject and appears in the ASF Airports Security Force preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.